81564658

素因数分解:

$2^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{71}}^1\times {\mathrm{2647}}^1$

素因数の和:2758

約数の個数: 32

約数和(自身を含む): 146423808

約数和(自身を除く): 64859150

約数列:

[1, 2, 7, 14, 31, 62, 71, 142, 217, 434, 497, 994, 2201, 2647, 4402, 5294, 15407, 18529, 30814, 37058, 82057, 164114, 187937, 375874, 574399, 1148798, 1315559, 2631118, 5826047, 11652094, 40782329, 81564658]

約数ペア:

[(1, 81564658), (2, 40782329), (7, 11652094), (14, 5826047), (31, 2631118), (62, 1315559), (71, 1148798), (142, 574399), (217, 375874), (434, 187937), (497, 164114), (994, 82057), (2201, 37058), (2647, 30814), (4402, 18529), (5294, 15407)]